/*
        list menu script by Brothercake (http://www.brothercake.com/)
        you may use the code providing this message remains intact
*/


//trigger initialiser
function menuInitTrigger(menuTrigger)
{

        //null menu object
        var menuMenu = null;

        //moz needs this         //mac/ie5 needs this
        if(menuTrigger.firstChild && menuTrigger.firstChild.nextSibling)
        {
                //get menu object
                menuMenu = menuTrigger.childNodes[2];
        }




        //bind menu mouse-opener
        menuTrigger.onmouseover = function()
        {
                this.menuShowMenu();
        }

        //bind menu mouse-closer
        menuTrigger.onmouseout = function(e)
        {
                this.menuHideMenu(e);
        }


        //menu opening function
        menuTrigger.menuShowMenu = function()
        {

                //rollover
                menuTrigger.firstChild.style.backgroundColor = '#cccc33';
                menuTrigger.firstChild.style.color = '#000000';

                //if trigger has menu
                if(menuMenu != null)
                {
                        //tweak top position
                        menuMenu.style.marginTop = (0-menuTrigger.offsetHeight)+'px';

                        //show menu
                        menuMenu.style.visibility = 'visible';

                }
        }


        //menu mouse-closing function
        menuTrigger.menuHideMenu = function(e)
        {
                if(!e) { e = window.event; }

                //if event came from outside current trigger branch
                if(!menuTrigger.contains(e.relatedTarget || e.toElement))
                {
                        //rollout
                        menuTrigger.firstChild.style.backgroundColor = '#003300';
                        menuTrigger.firstChild.style.color = '#ffffff';

                        //if trigger has menu
                        if(menuMenu != null)
                        {
                                //hide menu
                                menuMenu.style.visibility = 'hidden';
                        }
                }
        }


        //prototyped contains method
        //obviously not necessary for win/ie5, and errs in mac/ie5 anyway
        //not actually necessary for O7 either .. but I'm superstitious
        if(!(menu.macie||menu.winie))
        {
                //contains method by jkd (http://www.jasonkarldavis.com/)
                menuTrigger.contains = function(node)
                {
                        if (node == null) { return false; }
                        if (node == this) { return true; }
                        else { return this.contains(node.parentNode); }
                }
        }
}


//navbar object
function menuNavbar(ulTree)
{

        //object
        menu.nav = this;

        //ul tree
        menu.tree = ulTree;

        //invalidate markup so it works in win/ie
        if(menu.winie)
        {
                //get inner HTML
                menu.html = menu.tree.innerHTML;

                //replace <li> with <div> to prevent excess margins
                //sorry - I know this invalidates the DOM
                //but invalid markup is the only language it understands ...
                menu.html = menu.html.replace(/<([\/]?)li/ig,'<$1div');

                //write back to tree
                menu.tree.innerHTML = menu.html;
        }

        //get trigger elements
        (menu.xdom) ? menu.tagNames = 'li' : (menu.winie) ? menu.tagNames = 'DIV' : menu.tagNames = 'LI';
        menu.listItems = menu.tree.getElementsByTagName(menu.tagNames);
        menu.listLen = menu.listItems.length;

        //initialise
        for(i=0; i<menu.listLen; i++)
        {
                menuInitTrigger(menu.listItems[i]);
        }
}



//menu tree
var tree = null;

//menu object
var menu = new Object;

//identify support level
menu.ua = navigator.userAgent.toLowerCase();
menu.op6 = (menu.ua.indexOf("opera 6")!=-1||menu.ua.indexOf("opera/6")!=-1)?true:false;
menu.dom = (typeof document.getElementById!="undefined"&&typeof document.createElement!="undefined"&&!menu.op6)?true:false;

//identify win and mac versions of ie
menu.winie = (menu.dom&&typeof document.all!="undefined"&&typeof window.opera=="undefined")?true:false;
menu.macie = (menu.winie&&menu.ua.indexOf("mac")!=-1)?true:false;if(menu.macie){menu.winie=false;}

//identify which DOM were in
//this test may not be 100% reliable ...
menu.xdom = (menu.dom&&typeof document.write=='undefined')?true:false;


//initiate
window.onload = function()
{
        //if browser is supported
        if(menu.dom)
        {
                //tree object
                tree = document.getElementById('menu');

                if(tree != null)
                {
                        //create navbar object
                        menu.nav = new menuNavbar(tree)
                }
        }
}
// JavaScript Document